package jdbc;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;

/**
 * 执行UPDATE语句
 */
public class GDBDemo3 {
    public static void main(String[] args) {
        try(
            Connection connection = DBUtil.getConnection();
        ){
            Statement statement = connection.createStatement();
            String sql = "UPDATE userinfo " +
                    "SET password = '123456' " +
                    "WHERE username = '02' ";
            int num = statement.executeUpdate(sql);
            if (num > 0){
                System.out.println("修改成功");

            }else {
                System.out.println("修改失败");
            }
        }catch(SQLException e){
            e.printStackTrace();
        }
    }
}
